1,959 VNĐ - 0.09 $

12 tháng

22 FXO analog card with Echo Cancellation Hardware .The Sangoma A20011D 4 port FXO/FXS card delivers superior audio quality and is expandable to 24 ports in a 2U form factor. As you need them, additional REMORA cards can be added to the base four-port A200 card. A single PCI or PCI Express slot hosts connection for up to 24 ports and ensures common synchronous clocking for all channels.